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<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> *  Licensed to the Apache Software Foundation (ASF) under one</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *  or more contributor license agreements.  See the NOTICE file</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> *  distributed with this work for additional information</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> *  regarding copyright ownership.  The ASF licenses this file</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> *  to you under the Apache License, Version 2.0 (the</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> *  "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *  with the License.  You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> *    <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> *  Unless required by applicable law or agreed to in writing,</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> *  software distributed under the License is distributed on an</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> *  KIND, either express or implied.  See the License for the</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_comment"> *  specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_comment"> *  under the License.</em>
<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="19" href="#19">19</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">package</strong> org.apache.mina.proxy.handlers.socks;
<a class="jxr_linenumber" name="21" href="#21">21</a>  
<a class="jxr_linenumber" name="22" href="#22">22</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="23" href="#23">23</a>  <em class="jxr_javadoccomment"> * SocksProxyConstants.java - SOCKS proxy constants.</em>
<a class="jxr_linenumber" name="24" href="#24">24</a>  <em class="jxr_javadoccomment"> * </em>
<a class="jxr_linenumber" name="25" href="#25">25</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="http://mina.apache.org" target="alexandria_uri">http://mina.apache.org</a>"&gt;Apache MINA Project&lt;/a&gt;</em>
<a class="jxr_linenumber" name="26" href="#26">26</a>  <em class="jxr_javadoccomment"> * @since MINA 2.0.0-M3</em>
<a class="jxr_linenumber" name="27" href="#27">27</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/mina/proxy/handlers/socks/SocksProxyConstants.html">SocksProxyConstants</a> {
<a class="jxr_linenumber" name="29" href="#29">29</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="30" href="#30">30</a>  <em class="jxr_javadoccomment">     * SOCKS versions field values.</em>
<a class="jxr_linenumber" name="31" href="#31">31</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="32" href="#32">32</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte SOCKS_VERSION_4 = 0x04;
<a class="jxr_linenumber" name="33" href="#33">33</a>  
<a class="jxr_linenumber" name="34" href="#34">34</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte SOCKS_VERSION_5 = 0x05;
<a class="jxr_linenumber" name="35" href="#35">35</a>  
<a class="jxr_linenumber" name="36" href="#36">36</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte TERMINATOR = 0x00;
<a class="jxr_linenumber" name="37" href="#37">37</a>  
<a class="jxr_linenumber" name="38" href="#38">38</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="39" href="#39">39</a>  <em class="jxr_javadoccomment">     * The size of a server to client response in a SOCKS4/4a negotiation.</em>
<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="41" href="#41">41</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> SOCKS_4_RESPONSE_SIZE = 8;
<a class="jxr_linenumber" name="42" href="#42">42</a>      
<a class="jxr_linenumber" name="43" href="#43">43</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment">     * Invalid IP used in SOCKS 4a protocol to specify that the</em>
<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment">     * client can't resolve the destination host's domain name.</em>
<a class="jxr_linenumber" name="46" href="#46">46</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="47" href="#47">47</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] FAKE_IP = <strong class="jxr_keyword">new</strong> byte[] { 0, 0, 0, 10 };
<a class="jxr_linenumber" name="48" href="#48">48</a>  
<a class="jxr_linenumber" name="49" href="#49">49</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <em class="jxr_javadoccomment">     * Command codes. </em>
<a class="jxr_linenumber" name="51" href="#51">51</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte ESTABLISH_TCPIP_STREAM = 0x01;
<a class="jxr_linenumber" name="53" href="#53">53</a>  
<a class="jxr_linenumber" name="54" href="#54">54</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte ESTABLISH_TCPIP_BIND = 0x02;
<a class="jxr_linenumber" name="55" href="#55">55</a>  
<a class="jxr_linenumber" name="56" href="#56">56</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte ESTABLISH_UDP_ASSOCIATE = 0x03;
<a class="jxr_linenumber" name="57" href="#57">57</a>  
<a class="jxr_linenumber" name="58" href="#58">58</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="59" href="#59">59</a>  <em class="jxr_javadoccomment">     * SOCKS v4/v4a server reply codes.</em>
<a class="jxr_linenumber" name="60" href="#60">60</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="61" href="#61">61</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V4_REPLY_REQUEST_GRANTED = 0x5a;
<a class="jxr_linenumber" name="62" href="#62">62</a>  
<a class="jxr_linenumber" name="63" href="#63">63</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V4_REPLY_REQUEST_REJECTED_OR_FAILED = 0x5b;
<a class="jxr_linenumber" name="64" href="#64">64</a>  
<a class="jxr_linenumber" name="65" href="#65">65</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V4_REPLY_REQUEST_FAILED_NO_IDENTD = 0x5c;
<a class="jxr_linenumber" name="66" href="#66">66</a>  
<a class="jxr_linenumber" name="67" href="#67">67</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V4_REPLY_REQUEST_FAILED_ID_NOT_CONFIRMED = 0x5d;
<a class="jxr_linenumber" name="68" href="#68">68</a>  
<a class="jxr_linenumber" name="69" href="#69">69</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="70" href="#70">70</a>  <em class="jxr_javadoccomment">     * SOCKS v5 server reply codes.</em>
<a class="jxr_linenumber" name="71" href="#71">71</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="72" href="#72">72</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_SUCCEEDED = 0x00;
<a class="jxr_linenumber" name="73" href="#73">73</a>  
<a class="jxr_linenumber" name="74" href="#74">74</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_GENERAL_FAILURE = 0x01;
<a class="jxr_linenumber" name="75" href="#75">75</a>  
<a class="jxr_linenumber" name="76" href="#76">76</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_NOT_ALLOWED = 0x02;
<a class="jxr_linenumber" name="77" href="#77">77</a>  
<a class="jxr_linenumber" name="78" href="#78">78</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_NETWORK_UNREACHABLE = 0x03;
<a class="jxr_linenumber" name="79" href="#79">79</a>  
<a class="jxr_linenumber" name="80" href="#80">80</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_HOST_UNREACHABLE = 0x04;
<a class="jxr_linenumber" name="81" href="#81">81</a>  
<a class="jxr_linenumber" name="82" href="#82">82</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_CONNECTION_REFUSED = 0x05;
<a class="jxr_linenumber" name="83" href="#83">83</a>  
<a class="jxr_linenumber" name="84" href="#84">84</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_TTL_EXPIRED = 0x06;
<a class="jxr_linenumber" name="85" href="#85">85</a>  
<a class="jxr_linenumber" name="86" href="#86">86</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_COMMAND_NOT_SUPPORTED = 0x07;
<a class="jxr_linenumber" name="87" href="#87">87</a>  
<a class="jxr_linenumber" name="88" href="#88">88</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte V5_REPLY_ADDRESS_TYPE_NOT_SUPPORTED = 0x08;
<a class="jxr_linenumber" name="89" href="#89">89</a>  
<a class="jxr_linenumber" name="90" href="#90">90</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="91" href="#91">91</a>  <em class="jxr_javadoccomment">     * SOCKS v5 address types.</em>
<a class="jxr_linenumber" name="92" href="#92">92</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="93" href="#93">93</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte IPV4_ADDRESS_TYPE = 0x01;
<a class="jxr_linenumber" name="94" href="#94">94</a>  
<a class="jxr_linenumber" name="95" href="#95">95</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte DOMAIN_NAME_ADDRESS_TYPE = 0x03;
<a class="jxr_linenumber" name="96" href="#96">96</a>  
<a class="jxr_linenumber" name="97" href="#97">97</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte IPV6_ADDRESS_TYPE = 0x04;
<a class="jxr_linenumber" name="98" href="#98">98</a>  
<a class="jxr_linenumber" name="99" href="#99">99</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="100" href="#100">100</a> <em class="jxr_javadoccomment">     * SOCKS v5 handshake steps.</em>
<a class="jxr_linenumber" name="101" href="#101">101</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="102" href="#102">102</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> SOCKS5_GREETING_STEP = 0;
<a class="jxr_linenumber" name="103" href="#103">103</a> 
<a class="jxr_linenumber" name="104" href="#104">104</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> SOCKS5_AUTH_STEP = 1;
<a class="jxr_linenumber" name="105" href="#105">105</a> 
<a class="jxr_linenumber" name="106" href="#106">106</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> SOCKS5_REQUEST_STEP = 2;
<a class="jxr_linenumber" name="107" href="#107">107</a> 
<a class="jxr_linenumber" name="108" href="#108">108</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment">     * SOCKS v5 authentication methods.</em>
<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="111" href="#111">111</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte NO_AUTH = 0x00;
<a class="jxr_linenumber" name="112" href="#112">112</a> 
<a class="jxr_linenumber" name="113" href="#113">113</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte GSSAPI_AUTH = 0x01;
<a class="jxr_linenumber" name="114" href="#114">114</a> 
<a class="jxr_linenumber" name="115" href="#115">115</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte BASIC_AUTH = 0x02;
<a class="jxr_linenumber" name="116" href="#116">116</a> 
<a class="jxr_linenumber" name="117" href="#117">117</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte NO_ACCEPTABLE_AUTH_METHOD = (byte) 0xFF;
<a class="jxr_linenumber" name="118" href="#118">118</a> 
<a class="jxr_linenumber" name="119" href="#119">119</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte[] SUPPORTED_AUTH_METHODS = <strong class="jxr_keyword">new</strong> byte[] { NO_AUTH,
<a class="jxr_linenumber" name="120" href="#120">120</a>             GSSAPI_AUTH, BASIC_AUTH };
<a class="jxr_linenumber" name="121" href="#121">121</a> 
<a class="jxr_linenumber" name="122" href="#122">122</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte BASIC_AUTH_SUBNEGOTIATION_VERSION = 0x01;
<a class="jxr_linenumber" name="123" href="#123">123</a> 
<a class="jxr_linenumber" name="124" href="#124">124</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte GSSAPI_AUTH_SUBNEGOTIATION_VERSION = 0x01;
<a class="jxr_linenumber" name="125" href="#125">125</a> 
<a class="jxr_linenumber" name="126" href="#126">126</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> byte GSSAPI_MSG_TYPE = 0x01;
<a class="jxr_linenumber" name="127" href="#127">127</a> 
<a class="jxr_linenumber" name="128" href="#128">128</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="129" href="#129">129</a> <em class="jxr_javadoccomment">     * Kerberos providers OID's.</em>
<a class="jxr_linenumber" name="130" href="#130">130</a> <em class="jxr_javadoccomment">     */</em> 
<a class="jxr_linenumber" name="131" href="#131">131</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> String KERBEROS_V5_OID = <span class="jxr_string">"1.2.840.113554.1.2.2"</span>;
<a class="jxr_linenumber" name="132" href="#132">132</a> 
<a class="jxr_linenumber" name="133" href="#133">133</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> String MS_KERBEROS_V5_OID = <span class="jxr_string">"1.2.840.48018.1.2.2"</span>;
<a class="jxr_linenumber" name="134" href="#134">134</a> 
<a class="jxr_linenumber" name="135" href="#135">135</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="136" href="#136">136</a> <em class="jxr_javadoccomment">     * Microsoft NTLM security support provider.</em>
<a class="jxr_linenumber" name="137" href="#137">137</a> <em class="jxr_javadoccomment">     */</em> 
<a class="jxr_linenumber" name="138" href="#138">138</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> String NTLMSSP_OID = <span class="jxr_string">"1.3.6.1.4.1.311.2.2.10"</span>;
<a class="jxr_linenumber" name="139" href="#139">139</a> 
<a class="jxr_linenumber" name="140" href="#140">140</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment">     * Return the string associated with the specified reply code.</em>
<a class="jxr_linenumber" name="142" href="#142">142</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment">     * @param code the reply code</em>
<a class="jxr_linenumber" name="144" href="#144">144</a> <em class="jxr_javadoccomment">     * @return the reply string</em>
<a class="jxr_linenumber" name="145" href="#145">145</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="146" href="#146">146</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> String getReplyCodeAsString(byte code) {
<a class="jxr_linenumber" name="147" href="#147">147</a>         <strong class="jxr_keyword">switch</strong> (code) {
<a class="jxr_linenumber" name="148" href="#148">148</a>         <em class="jxr_comment">// v4 &amp; v4a codes</em>
<a class="jxr_linenumber" name="149" href="#149">149</a>         <strong class="jxr_keyword">case</strong> V4_REPLY_REQUEST_GRANTED:
<a class="jxr_linenumber" name="150" href="#150">150</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request granted"</span>;
<a class="jxr_linenumber" name="151" href="#151">151</a>         <strong class="jxr_keyword">case</strong> V4_REPLY_REQUEST_REJECTED_OR_FAILED:
<a class="jxr_linenumber" name="152" href="#152">152</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request rejected or failed"</span>;
<a class="jxr_linenumber" name="153" href="#153">153</a>         <strong class="jxr_keyword">case</strong> V4_REPLY_REQUEST_FAILED_NO_IDENTD:
<a class="jxr_linenumber" name="154" href="#154">154</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed because client is not running identd (or not reachable from the server)"</span>;
<a class="jxr_linenumber" name="155" href="#155">155</a>         <strong class="jxr_keyword">case</strong> V4_REPLY_REQUEST_FAILED_ID_NOT_CONFIRMED:
<a class="jxr_linenumber" name="156" href="#156">156</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed because client's identd could not confirm the user ID string in the request"</span>;
<a class="jxr_linenumber" name="157" href="#157">157</a> 
<a class="jxr_linenumber" name="158" href="#158">158</a>         <em class="jxr_comment">// v5 codes</em>
<a class="jxr_linenumber" name="159" href="#159">159</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_SUCCEEDED:
<a class="jxr_linenumber" name="160" href="#160">160</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request succeeded"</span>;
<a class="jxr_linenumber" name="161" href="#161">161</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_GENERAL_FAILURE:
<a class="jxr_linenumber" name="162" href="#162">162</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed: general SOCKS server failure"</span>;
<a class="jxr_linenumber" name="163" href="#163">163</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_NOT_ALLOWED:
<a class="jxr_linenumber" name="164" href="#164">164</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed: connection not allowed by ruleset"</span>;
<a class="jxr_linenumber" name="165" href="#165">165</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_NETWORK_UNREACHABLE:
<a class="jxr_linenumber" name="166" href="#166">166</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed: network unreachable"</span>;
<a class="jxr_linenumber" name="167" href="#167">167</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_HOST_UNREACHABLE:
<a class="jxr_linenumber" name="168" href="#168">168</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed: host unreachable"</span>;
<a class="jxr_linenumber" name="169" href="#169">169</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_CONNECTION_REFUSED:
<a class="jxr_linenumber" name="170" href="#170">170</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed: connection refused"</span>;
<a class="jxr_linenumber" name="171" href="#171">171</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_TTL_EXPIRED:
<a class="jxr_linenumber" name="172" href="#172">172</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed: TTL expired"</span>;
<a class="jxr_linenumber" name="173" href="#173">173</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_COMMAND_NOT_SUPPORTED:
<a class="jxr_linenumber" name="174" href="#174">174</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed: command not supported"</span>;
<a class="jxr_linenumber" name="175" href="#175">175</a>         <strong class="jxr_keyword">case</strong> V5_REPLY_ADDRESS_TYPE_NOT_SUPPORTED:
<a class="jxr_linenumber" name="176" href="#176">176</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Request failed: address type not supported"</span>;
<a class="jxr_linenumber" name="177" href="#177">177</a> 
<a class="jxr_linenumber" name="178" href="#178">178</a>         <strong class="jxr_keyword">default</strong>:
<a class="jxr_linenumber" name="179" href="#179">179</a>             <strong class="jxr_keyword">return</strong> <span class="jxr_string">"Unknown reply code"</span>;
<a class="jxr_linenumber" name="180" href="#180">180</a>         }
<a class="jxr_linenumber" name="181" href="#181">181</a>     }
<a class="jxr_linenumber" name="182" href="#182">182</a> }
</pre>
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